Important kernel security update: New kernel 2.6.32-042stab142.1 for Virtuozzo Containers for Linux 4.7, Server Bare Metal 5.0¶
Issue date: 2020-01-31
Applies to: Virtuozzo Containers for Linux 4.7, Server Bare Metal 5.0
Virtuozzo Advisory ID: VZA-2020-010
This update provides a new kernel 2.6.32-042stab142.1 for Virtuozzo Containers for Linux 4.7 and Server Bare Metal 5.0. It is based on the RHEL 6.10 kernel 2.6.32-754.27.1.el6 and inherits security and stability fixes from it. The new kernel also provides internal stability fixes.
2. Security Fixes¶
[Important] Kernel: KVM: OOB memory access via mmio ring buffer. This issue is not critical for Virtuozzo Containers for Linux 4.7 or Server Bare Metal 5.0, as these solutions do not use KVM. (CVE-2019-14821)
3. Bug Fixes¶
vzfs-to-ploop conversion on running container could crash the host. (PSBM-99030, PSBM-100878)
Container stop operation could hang. (PSBM-100203)
Container restore operation could crash the host due to incorrect symbolic link processing. (OVZ-7147)
4. Installing the Update¶
The update is only available for customers subscribed to the Extended Lifecycle Support (ELS) program. Download and install the update using the vzup2date utility included in the distribution. Reboot the host and switch to the new kernel.
The JSON file with the list of new and updated packages is available at https://docs.virtuozzo.com/vza/VZA-2020-010.json.